n.月球背面
Sometimes our view of the farside is blocked because the object spins so slowly. 有时，看不到背离我们的一面，是由于天体旋转得很慢，致使我们的视线受阻。
As no astronauts have ever landed on the farside, we know little about its composition and history. 由于从来没有宇航员在月球背面着陆，我们对月球背面的结构和历史几乎一无所知。
The favored location- Saha Crater-is near the moon's equator and only three degrees onto the lunar farside. 萨哈火山口是最佳地点--它靠近月球赤道并且只在月球另一面的三度位置上。
Our galaxy, the Milky Way, has interesting things hidden behind its farside too. 在我们银河系的背面也隐藏着有趣的景象。
If a giantmagnetic storm is brewing on the farside, it will hit Earth with a flood of radiation as it finally rotates into view. 如果另一面正在形成一场巨大的磁暴，当另一面最终转到朝向地球时，磁暴就会携带大量的辐射袭击地球。
